IT954791B - KEYBOARD FOR ACCOUNTING CALCULATING MACHINES AND SIMILAR OFFICE MACHINES - Google Patents

KEYBOARD FOR ACCOUNTING CALCULATING MACHINES AND SIMILAR OFFICE MACHINES

Info

Publication number
IT954791B
IT954791B IT68316/72A IT6831672A IT954791B IT 954791 B IT954791 B IT 954791B IT 68316/72 A IT68316/72 A IT 68316/72A IT 6831672 A IT6831672 A IT 6831672A IT 954791 B IT954791 B IT 954791B
Authority
IT
Italy
Prior art keywords
machines
keyboard
similar office
accounting calculating
accounting
Prior art date
Application number
IT68316/72A
Other languages
Italian (it)
Original Assignee
Olivetti & Co Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olivetti & Co Spa filed Critical Olivetti & Co Spa
Priority to IT68316/72A priority Critical patent/IT954791B/en
Priority to CA170,037A priority patent/CA981645A/en
Priority to US354052A priority patent/US3872468A/en
Priority to FR7315233A priority patent/FR2182549A5/fr
Priority to JP48046770A priority patent/JPS4955227A/ja
Priority to GB1992573A priority patent/GB1422020A/en
Priority to AR247740A priority patent/AR198085A1/en
Priority to ES414192A priority patent/ES414192A1/en
Priority to BR3144/73A priority patent/BR7303144D0/en
Priority to DE2322376A priority patent/DE2322376C2/en
Application granted granted Critical
Publication of IT954791B publication Critical patent/IT954791B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/72—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard wherein the switch has means for limiting the number of operating members that can concurrently be in the actuated position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
IT68316/72A 1972-04-28 1972-04-28 KEYBOARD FOR ACCOUNTING CALCULATING MACHINES AND SIMILAR OFFICE MACHINES IT954791B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
IT68316/72A IT954791B (en) 1972-04-28 1972-04-28 KEYBOARD FOR ACCOUNTING CALCULATING MACHINES AND SIMILAR OFFICE MACHINES
US354052A US3872468A (en) 1972-04-28 1973-04-24 Keyboard for calculating, accounting and other office machines
CA170,037A CA981645A (en) 1972-04-28 1973-04-24 Keyboard for calculating, accounting and other office machines
JP48046770A JPS4955227A (en) 1972-04-28 1973-04-26
FR7315233A FR2182549A5 (en) 1972-04-28 1973-04-26
GB1992573A GB1422020A (en) 1972-04-28 1973-04-26 Keyboard for calculating accounting and other office machines
AR247740A AR198085A1 (en) 1972-04-28 1973-04-27 KEYBOARD FOR ACCOUNTING MACHINES, CALCULATORS AND OTHERS USED IN OFFICES
ES414192A ES414192A1 (en) 1972-04-28 1973-04-28 Keyboard for calculating, accounting and other office machines
BR3144/73A BR7303144D0 (en) 1972-04-28 1973-04-30 KEYBOARD IMPROVEMENTS FOR ACCOUNTING CALCULATION MACHINES AND OTHER OFFICE MACHINES
DE2322376A DE2322376C2 (en) 1972-04-28 1973-04-30 Keyboard for electronic machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68316/72A IT954791B (en) 1972-04-28 1972-04-28 KEYBOARD FOR ACCOUNTING CALCULATING MACHINES AND SIMILAR OFFICE MACHINES

Publications (1)

Publication Number Publication Date
IT954791B true IT954791B (en) 1973-09-15

Family

ID=11308954

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68316/72A IT954791B (en) 1972-04-28 1972-04-28 KEYBOARD FOR ACCOUNTING CALCULATING MACHINES AND SIMILAR OFFICE MACHINES

Country Status (10)

Country Link
US (1) US3872468A (en)
JP (1) JPS4955227A (en)
AR (1) AR198085A1 (en)
BR (1) BR7303144D0 (en)
CA (1) CA981645A (en)
DE (1) DE2322376C2 (en)
ES (1) ES414192A1 (en)
FR (1) FR2182549A5 (en)
GB (1) GB1422020A (en)
IT (1) IT954791B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016967A (en) * 1975-11-18 1977-04-12 Hamilton Communications, Inc. Decoding means with error inhibitor for use with a typewriter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456077A (en) * 1965-09-22 1969-07-15 Navigation Computer Corp High speed electronic keyboard assembly
US3491337A (en) * 1966-12-05 1970-01-20 Scm Corp Coded message generator
US3466647A (en) * 1967-07-31 1969-09-09 Scm Corp Data signal generating apparatus
US3530239A (en) * 1968-01-17 1970-09-22 Jara Electronics Inc Information encoding and recording system
JPS5023944U (en) * 1973-06-23 1975-03-18

Also Published As

Publication number Publication date
AR198085A1 (en) 1974-05-31
CA981645A (en) 1976-01-13
US3872468A (en) 1975-03-18
FR2182549A5 (en) 1973-12-07
DE2322376C2 (en) 1983-04-28
ES414192A1 (en) 1976-03-01
DE2322376A1 (en) 1973-11-15
GB1422020A (en) 1976-01-21
JPS4955227A (en) 1974-05-29
BR7303144D0 (en) 1974-07-11

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